Cobalt Blue Spinel Sri Lanka 2.51 cts website

Cobalt Blue Spinel Sri Lanka 2.51 cts

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One of the most prized varieties of Spinel, this Cobalt Blue Gem from Ceylon features the distinctive hue and coveted name on the report. Faceted as an oval, the Natural Cobalt Spinel displays great luster and clarity, and the rare size for this precious material two and a half carats. 

Stone type: Spinel
Weight: 2.51 cts
Dimension: 9.25 x 6.69 x 5.08 mm
Color:  Cobalt Blue  
Origin: Sri Lanka
Shape & Cut: Oval,  Yavorskyy  cut  
Certified:  GRS

***Sri lanka's spinels occur in a variety of hues, including rich plum colors, pinks and, rarely, in stunning cobalt blues.***
(Extract from the book "Terra Spinel " by Vladyslav Yavorskyy)

Treatment: Unheated and Untreated (No Indications Observed)
Refractive Index: 1.712-1.782
Hardness: 7.5-8
Specific Gravity: 3.6
Optical properties: Singly refractive
Chemical formula: MgAl₂O₄
Shipment from: Thailand
Return Policy: 3 Day Money-Back Return*
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